2 * Copyright (c) 1997-2005 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 #include "ktutil_locl.h"
39 readstring(const char *prompt, char *buf, size_t len)
42 if (fgets(buf, len, stdin) == NULL)
44 buf[strcspn(buf, "\r\n")] = '\0';
49 kt_add(struct add_options *opt, int argc, char **argv)
53 krb5_keytab_entry entry;
57 if((keytab = ktutil_open_keytab()) == NULL)
60 memset(&entry, 0, sizeof(entry));
61 if(opt->principal_string == NULL) {
62 if(readstring("Principal: ", buf, sizeof(buf)) == NULL)
64 opt->principal_string = buf;
66 ret = krb5_parse_name(context, opt->principal_string, &entry.principal);
68 krb5_warn(context, ret, "%s", opt->principal_string);
71 if(opt->enctype_string == NULL) {
72 if(readstring("Encryption type: ", buf, sizeof(buf)) == NULL) {
76 opt->enctype_string = buf;
78 ret = krb5_string_to_enctype(context, opt->enctype_string, &enctype);
81 if(sscanf(opt->enctype_string, "%d", &t) == 1)
84 krb5_warn(context, ret, "%s", opt->enctype_string);
88 if(opt->kvno_integer == -1) {
89 if(readstring("Key version: ", buf, sizeof(buf)) == NULL) {
93 if(sscanf(buf, "%u", &opt->kvno_integer) != 1)
96 if(opt->password_string == NULL && opt->random_flag == 0) {
97 if(UI_UTIL_read_pw_string(buf, sizeof(buf), "Password: ", 1)) {
101 opt->password_string = buf;
103 if(opt->password_string) {
108 len = (strlen(opt->password_string) + 1) / 2;
112 krb5_warn(context, ENOMEM, "malloc");
116 if ((size_t)hex_decode(opt->password_string, data, len) != len) {
118 krb5_warn(context, ENOMEM, "hex decode failed");
122 ret = krb5_keyblock_init(context, enctype,
123 data, len, &entry.keyblock);
125 } else if (!opt->salt_flag) {
129 salt.salttype = KRB5_PW_SALT;
130 salt.saltvalue.data = NULL;
131 salt.saltvalue.length = 0;
132 pw.data = (void*)opt->password_string;
133 pw.length = strlen(opt->password_string);
134 ret = krb5_string_to_key_data_salt(context, enctype, pw, salt,
137 ret = krb5_string_to_key(context, enctype, opt->password_string,
138 entry.principal, &entry.keyblock);
140 memset (opt->password_string, 0, strlen(opt->password_string));
142 ret = krb5_generate_random_keyblock(context, enctype, &entry.keyblock);
145 krb5_warn(context, ret, "add");
148 entry.vno = opt->kvno_integer;
149 entry.timestamp = time (NULL);
150 ret = krb5_kt_add_entry(context, keytab, &entry);
152 krb5_warn(context, ret, "add");
154 krb5_kt_free_entry(context, &entry);
155 krb5_kt_close(context, keytab);